Tensile test of an Al nanowire using in-situ transmission electron microscopy and its dynamic deformation behavior

Sung Hoon Kim; Hong Kyu Kim; Jong Hyun Seo; Jong Woon Lee; Dong Mok Hwang; Jae Pyoung Ahn; Jae Chul Lee

doi:10.3365/KJMM.2016.54.5.386

Tensile test of an Al nanowire using in-situ transmission electron microscopy and its dynamic deformation behavior

Sung Hoon Kim, Hong Kyu Kim, Jong Hyun Seo, Jong Woon Lee, Dong Mok Hwang, Jae Pyoung Ahn, Jae Chul Lee

GREEN SCHOOL (Graduate School of Energy and Environment)

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Both the deformation behaviors and the associated structural evolution of an Al nanowire were observed by conducting tensile testing in TEM. The Al nanowire exhibited a strength close to the theoretical value and a substantial elastic limit of ∼5%. Different from bulk-forms of Al, the Al nanowire did not exhibit any quantifiable plastic strain and failed in a brittle manner. This behavior was related to the formation of deformation twins that interlock. Comparative studies were also performed using an Au nanowire to elucidate the effect that the magnitude of the stacking fault energy (SFE) has on the formation of the deformation twins and plasticity.

Original language	English
Pages (from-to)	386-389
Number of pages	4
Journal	Journal of Korean Institute of Metals and Materials
Volume	54
Issue number	5
DOIs	https://doi.org/10.3365/KJMM.2016.54.5.386
Publication status	Published - 2016 May

Keywords

Deformation
Nanostructured materials
Nanowires
Transmission electron microscopy (TEM)
Twinning

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Modelling and Simulation
Surfaces, Coatings and Films
Metals and Alloys

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10.3365/KJMM.2016.54.5.386

Cite this

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abstract = "Both the deformation behaviors and the associated structural evolution of an Al nanowire were observed by conducting tensile testing in TEM. The Al nanowire exhibited a strength close to the theoretical value and a substantial elastic limit of ∼5%. Different from bulk-forms of Al, the Al nanowire did not exhibit any quantifiable plastic strain and failed in a brittle manner. This behavior was related to the formation of deformation twins that interlock. Comparative studies were also performed using an Au nanowire to elucidate the effect that the magnitude of the stacking fault energy (SFE) has on the formation of the deformation twins and plasticity.",

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AU - Hwang, Dong Mok

AU - Ahn, Jae Pyoung

AU - Lee, Jae Chul

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N2 - Both the deformation behaviors and the associated structural evolution of an Al nanowire were observed by conducting tensile testing in TEM. The Al nanowire exhibited a strength close to the theoretical value and a substantial elastic limit of ∼5%. Different from bulk-forms of Al, the Al nanowire did not exhibit any quantifiable plastic strain and failed in a brittle manner. This behavior was related to the formation of deformation twins that interlock. Comparative studies were also performed using an Au nanowire to elucidate the effect that the magnitude of the stacking fault energy (SFE) has on the formation of the deformation twins and plasticity.

AB - Both the deformation behaviors and the associated structural evolution of an Al nanowire were observed by conducting tensile testing in TEM. The Al nanowire exhibited a strength close to the theoretical value and a substantial elastic limit of ∼5%. Different from bulk-forms of Al, the Al nanowire did not exhibit any quantifiable plastic strain and failed in a brittle manner. This behavior was related to the formation of deformation twins that interlock. Comparative studies were also performed using an Au nanowire to elucidate the effect that the magnitude of the stacking fault energy (SFE) has on the formation of the deformation twins and plasticity.

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KW - Nanostructured materials

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Tensile test of an Al nanowire using in-situ transmission electron microscopy and its dynamic deformation behavior

Abstract

Keywords

ASJC Scopus subject areas

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